Pixel arrangement structure, display substrate and display device

Abstract

A pixel arrangement structure, a display substrate and a display device. The pixel arrangement structure comprises pixel groups extending along a first direction and arranged along a second direction, each pixel group comprising a first sub-pixel column, a second sub-pixel column and a third sub-pixel column, the first sub-pixel column comprising a plurality of first sub-pixels, the second sub-pixel column comprising a plurality of second sub-pixel pairs, and the third sub-pixel column comprising a plurality of third sub-pixels, in each pixel group, the centers of two adjacent first sub-pixels and the centers of two third sub-pixels adjacent to the two first sub-pixels are four vertices of a virtual quadrilateral, the center of a second sub-pixel pair surrounded by the four sub-pixels is at the center of the virtual quadrilateral, and the distance along the first direction between the centers of two adjacent virtual quadrilaterals in two adjacent pixel groups is half of the length of the side. The pixel arrangement structure reduces the graininess of the second sub-pixel pairs during display.

Description

[0001] This application is a divisional application of the invention patent application filed on February 9, 2018, with application number 201810135946.7 and entitled "Pixel Arrangement Structure, Display Substrate and Display Device". Technical Field

[0002] At least one embodiment of this disclosure relates to a pixel arrangement structure, a display substrate, and a display device. Background Technology

[0003] When the display resolution is comparable to the human eye resolution, the difference in resolution of different color sub-pixels can be used to change the conventional arrangement of red, green, and blue sub-pixels. For example, by sharing some sub-pixels to reduce the number of sub-pixels, the density of physical sub-pixels can be reduced while maintaining the same image resolution. This reduces the manufacturing difficulty of display devices, thereby improving yield and reducing costs. Summary of the Invention

[0004] At least one embodiment of this disclosure provides a pixel arrangement structure, a display substrate, and a display device. The pixel arrangement structure can reduce the distance between two adjacent second sub-pixel pairs arranged along a first direction, thereby reducing the graininess of the second sub-pixel pairs during display.

[0005] At least one embodiment of this disclosure provides a pixel arrangement structure, including: a plurality of pixel groups extending along a first direction and arranged along a second direction, each pixel group including a first sub-pixel column, a second sub-pixel column, and a third sub-pixel column extending along the first direction and arranged sequentially along the second direction, the first sub-pixel column including a plurality of first sub-pixels, the second sub-pixel column including a plurality of second sub-pixel pairs, and the third sub-pixel column including a plurality of third sub-pixels, the first direction being perpendicular to the second direction, wherein, in each pixel group, the centers of two adjacent first sub-pixels and the centers of two third sub-pixels respectively adjacent to the two adjacent first sub-pixels along the second direction are the four vertices of a virtual quadrilateral, the center of a second sub-pixel pair surrounded by the above four sub-pixels is located at the center of the virtual quadrilateral, and the distance along the first direction between the centers of two adjacent virtual quadrilaterals located in two adjacent pixel groups is half the side length of the virtual quadrilateral.

[0006] For example, in some examples, the second sub-pixel pair is a green sub-pixel pair, the first sub-pixel is a red sub-pixel, and the third sub-pixel is a blue sub-pixel; or, the first sub-pixel is a blue sub-pixel, and the third sub-pixel is a green sub-pixel.

[0007] For example, in some examples, the first sub-pixel, the second sub-pixel pair, and the third sub-pixel are all squares or rounded squares, with the diagonals of the squares or rounded squares parallel to the first direction or the second direction.

[0008] For example, in some examples, along the first direction, the distance between two adjacent pairs of the second sub-pixels is less than the size of at least one of the first sub-pixel and the third sub-pixel.

[0009] For example, in some examples, the side length of the first sub-pixel, the side length of the second sub-pixel pair, and the side length of the third sub-pixel are approximately the same.

[0010] For example, in some examples, the two second subpixels in each pair of second subpixels have the same shape and size.

[0011] For example, in some examples, the minimum distance between the two second sub-pixels in each second sub-pixel pair is less than the minimum distance between the second sub-pixel pair and the first sub-pixel or the third sub-pixel.

[0012] For example, in some examples, the two second sub-pixels in each second sub-pixel pair are both rectangles or rounded rectangles.

[0013] For example, in some examples, the two second sub-pixels in each second sub-pixel pair are both right-angled triangles or rounded right-angled triangles.

[0014] For example, in some examples, along the first direction, the distance between two adjacent first sub-pixels is equal to the distance between two adjacent third sub-pixels.

[0015] For example, in some examples, the two second sub-pixels in each second sub-pixel pair are a first pixel block and a second pixel block, respectively. The pixel arrangement structure includes a plurality of minimum repeating units, each of the minimum repeating units including a first sub-pixel, a first pixel block, a second pixel block and a third sub-pixel. One of the first pixel block and the second pixel block forms a first virtual pixel with the first sub-pixel, and the other of the first pixel block and the second pixel block forms a second virtual pixel with the third sub-pixel.

[0016] For example, in some examples, each of the minimum repeating units includes a first sub-pixel, a second sub-pixel pair, and a third sub-pixel, the first sub-pixel and the third sub-pixel being adjacent to each other along the extension direction of the first diagonal of the virtual quadrilateral, the second sub-pixel pair and the first sub-pixel being adjacent to each other along the extension direction of the second diagonal of the virtual quadrilateral, the second sub-pixel pair and the third sub-pixel being adjacent to each other along the second direction, and the extension directions of the first diagonal and the second diagonal intersect each other.

[0017] For example, in some examples, the first sub-pixel in each of the minimum repeating units is adjacent to the third sub-pixel along the second direction.

[0018] For example, in some examples, along the second direction, the first pixel block is one of the second sub-pixel pairs adjacent to the third sub-pixel, closer to the third sub-pixel; along the extension direction of the diagonal of the virtual quadrilateral, the second pixel block is one of the second sub-pixel pairs adjacent to both the first and third sub-pixels, farther from the first sub-pixel.

[0019] For example, in some examples, along the extension direction of the diagonal of the virtual quadrilateral, the first pixel block is one of the second sub-pixel pairs that is closer to the first sub-pixel and adjacent to both the first and third sub-pixels, and along the second direction, the second pixel block is one of the second sub-pixel pairs that is farther away from the third sub-pixel and adjacent to the third sub-pixel.

[0020] For example, in some examples, along the second direction, the first pixel block is one of the second sub-pixel pairs adjacent to the third sub-pixel that is farther away from the third sub-pixel, and along the extension direction of the diagonal of the virtual quadrilateral, the second pixel block is one of the second sub-pixel pairs adjacent to both the first and the third sub-pixel that is farther away from the third sub-pixel.

[0021] For example, in some examples, along the extension direction of the diagonal of the virtual quadrilateral, the first pixel block is one of the second sub-pixel pairs that is adjacent to the third sub-pixel and is closer to the third sub-pixel. Along the second direction, the second pixel block is one of the second sub-pixel pairs that is adjacent to the third sub-pixel and is closer to the third sub-pixel.

[0022] For example, in some examples, the first pixel block and the second pixel block are both right-angled triangles or rounded right-angled triangles. Along the extension direction of the diagonal of the virtual quadrilateral, one of the first pixel block and the second pixel block is located in a second sub-pixel pair that is adjacent to both the first sub-pixel and the third sub-pixel. Along the second direction, the other of the first pixel block and the second pixel block is located in a second sub-pixel pair that is adjacent to the third sub-pixel. And along at least one of the first direction and the second direction, the orientation of the right angle of the first pixel block is opposite to that of the right angle or rounded right angle of the second pixel block.

[0023] At least one embodiment of this disclosure provides a display substrate, including: a substrate; and a pixel arrangement structure as described in the above embodiments located on the substrate.

[0024] At least one embodiment of this disclosure provides a display device including a display substrate as described in the above embodiments. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings of the embodiments will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this disclosure and are not intended to limit this disclosure.

[0026] Figure 1 A schematic diagram of a GGRB pixel arrangement structure;

[0027] Figure 2A This is a schematic diagram of a pixel arrangement structure provided in an embodiment of the present disclosure;

[0028] Figure 2B for Figure 2A A schematic diagram showing that one of the sub-pixels is a rounded square;

[0029] Figure 2C for Figure 2A A schematic diagram of a minimum repeating unit in the pixel arrangement structure shown;

[0030] Figure 2D For including Figure 2C The diagram shows the pixel arrangement structure of the two smallest repeating units.

[0031] Figure 2E and Figure 2F They are respectively Figure 2A A schematic diagram of another minimal repeating unit in the pixel arrangement structure shown;

[0032] Figure 3A This is a schematic diagram of a pixel arrangement structure provided in another embodiment of the present disclosure;

[0033] Figures 3B-3D for Figure 3A A schematic diagram of the smallest repeating units with different arrangement forms in the pixel arrangement structure shown;

[0034] Figure 3E for Figure 3A A schematic diagram of the shape of a second sub-pixel pair is shown;

[0035] Figure 4A This is a schematic diagram of a pixel arrangement structure provided in another embodiment of the present disclosure;

[0036] Figures 4B-4D for Figure 4A A schematic diagram of the smallest repeating units with different arrangement forms in the pixel arrangement structure shown;

[0037] Figure 4E for Figure 4A A schematic diagram of the shape of a second sub-pixel pair is shown;

[0038] Figure 5A This is a schematic diagram of a pixel arrangement structure provided in another embodiment of the present disclosure;

[0039] Figures 5B-5D for Figure 5A A schematic diagram of the smallest repeating units with different arrangement forms in the pixel arrangement structure shown;

[0040] Figure 6 A schematic diagram of a display substrate provided in another embodiment of this disclosure;

[0041] Figure 7 This is a schematic diagram of a display device provided for another embodiment of the present disclosure. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0043] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0044] Figure 1 This is a schematic diagram of a GGRB pixel arrangement structure, specifically a pixel arrangement structure in which green, green, red, and blue sub-pixels are arranged in a cyclic manner along the row direction. Figure 1 As shown, the pixel arrangement structure includes a red sub-pixel 11, a blue sub-pixel 13, and a green sub-pixel pair 12, with each green sub-pixel pair 12 consisting of two green sub-pixels. The red sub-pixel 11 and blue sub-pixel 13 are both hexagonal in shape, with three pairs of parallel sides. Each green sub-pixel in the green sub-pixel pair 12 is pentagonal in shape, comprising a pair of parallel sides and a perpendicular side. The perpendicular side is perpendicular to the pair of parallel sides, and the perpendicular sides of the two green sub-pixels in the green sub-pixel pair 12 are arranged adjacent to each other.

[0045] Along the Y direction, a red sub-pixel 11 and a blue sub-pixel 13 are positioned between two adjacent green sub-pixel pairs 12. Taking the four sub-pixels circled in the dashed box in the figure as an example to form two virtual pixels, the red sub-pixel 11 and one of the green sub-pixels in the green sub-pixel pair 12 form one virtual pixel, and the blue sub-pixel 13 and the other green sub-pixel in the green sub-pixel pair 12 form another virtual pixel. Furthermore, the red sub-pixel 11 and the blue sub-pixel 13 are shared by the two virtual pixels respectively.

[0046] During the research, the inventors of this application discovered: Figure 1 The distance L2' between two adjacent green sub-pixel pairs 12 arranged along the X direction is greater than the longest dimension of the red sub-pixel 11 (or blue sub-pixel 13) along the X direction, thus including Figure 1 When the display device with the pixel arrangement structure shown is displaying data, the green sub-pixel pairs will produce a noticeable grainy appearance.

[0047] This disclosure provides a pixel arrangement structure, a display substrate, and a display device. The pixel arrangement structure includes multiple pixel groups extending along a first direction and arranged along a second direction. Each pixel group includes a first sub-pixel column, a second sub-pixel column, and a third sub-pixel column extending along the first direction and arranged sequentially along the second direction. The first sub-pixel column includes multiple first sub-pixels, the second sub-pixel column includes multiple second sub-pixel pairs, and the third sub-pixel column includes multiple third sub-pixels. The first direction is perpendicular to the second direction. In each pixel group, the centers of two adjacent first sub-pixels and the centers of two third sub-pixels adjacent to the two adjacent first sub-pixels along the second direction are used as the four vertices of a virtual quadrilateral. The center of a second sub-pixel pair surrounded by the four sub-pixels is located at the center of the virtual quadrilateral. Furthermore, the distance along the first direction between the centers of two adjacent virtual quadrilaterals located in two adjacent pixel groups is half the side length of the virtual quadrilateral. This pixel arrangement structure can reduce the distance between two adjacent second sub-pixel pairs arranged along the first direction, thereby reducing the graininess of the second sub-pixel pairs during display.

[0048] The pixel arrangement structure, display substrate, and display device provided in the embodiments of this disclosure are described below with reference to the accompanying drawings.

[0049] Figure 2A This is a schematic diagram of a pixel arrangement structure provided in an embodiment of the present disclosure, as shown below. Figure 2A As shown, the pixel arrangement structure includes multiple pixel groups 10 extending along a first direction (i.e., the X direction) and arranged along a second direction (i.e., the Y direction). Each pixel group 10 includes a first sub-pixel column 100, a second sub-pixel column 200, and a third sub-pixel column 300 extending along the first direction and arranged sequentially along the second direction. The first sub-pixel column 100 includes multiple first sub-pixels 110, the second sub-pixel column 200 includes multiple second sub-pixel pairs 210, and the third sub-pixel column 300 includes multiple third sub-pixels 310. The first direction is perpendicular to the second direction. Here, the second sub-pixel pair 210 refers to a second sub-pixel pair 210 composed of two second sub-pixels.

[0050] like Figure 2AAs shown, in each pixel group 10, the centers 111 of two adjacent first sub-pixels 110 and the centers 311 of two third sub-pixels 310 adjacent to the two adjacent first sub-pixels 110 along the second direction are the four vertices of the virtual quadrilateral 400. That is, in each pixel group 10, the virtual quadrilateral 400 can be obtained by connecting the centers 111 of two adjacent first sub-pixels 110 and the centers 311 of two third sub-pixels 310 adjacent to the two adjacent first sub-pixels 110 along the second direction. The center 211 of a pair of second sub-pixels 210 surrounded by the above four sub-pixels is located at the center 401 of the virtual quadrilateral 400, that is, the center 211 of the second sub-pixel pair 210 coincides with the center 401 of the virtual quadrilateral 400. Furthermore, along the first direction, the distance L1 between the centers 401 of two adjacent virtual quadrilaterals 400 located in two adjacent pixel groups 10 is half the side length of the virtual quadrilateral 400. That is, along the first direction, the two adjacent pixel groups 10 are offset relative to each other by half the side length of the virtual quadrilateral 400. Here, "center" is located approximately at the center of the first sub-pixel, the second sub-pixel pair, and the third sub-pixel. Due to manufacturing processes and other reasons, the above-mentioned "center" may not be a precise center position.

[0051] For example, such as Figure 2A As shown, in the pixel arrangement structure provided in this embodiment, any column of sub-pixels arranged along the first direction are sub-pixels with the same color; along the second direction, a first sub-pixel 110 and a third sub-pixel 310 are sequentially arranged between two adjacent pairs of second sub-pixels 210. For example, along the second direction, the first sub-pixel 110, the third sub-pixel 310, and the second sub-pixel pair 210 are arranged cyclically; along the diagonal direction of the virtual quadrilateral 400, a first sub-pixel 110 and a third sub-pixel 310 are sequentially arranged between two adjacent pairs of second sub-pixels 210. For example, along the diagonal direction of the virtual quadrilateral 400, the first sub-pixel 110, the second sub-pixel pair 210, and the third sub-pixel 310 are arranged cyclically.

[0052] For example, such as Figure 2A As shown, in each pixel group 10, along the second direction, the line connecting the centers of adjacent first sub-pixels 110 and third sub-pixels 310 is parallel to the second direction. Since the line connecting the centers 111 of two adjacent first sub-pixels 110 and the line connecting the centers 311 of two adjacent third sub-pixels 310 are parallel to the first direction, the shape of the virtual quadrilateral 400 is a rectangle.

[0053] For example, such as Figure 2AAs shown, in each pixel group 10, along the second direction, the length of the line connecting the centers of adjacent first sub-pixels 110 and third sub-pixels 310 is L0 (not shown in the figure), and the line connecting the centers 111 of two adjacent first sub-pixels 110 and the line connecting the centers 311 of two adjacent third sub-pixels 310 is also L0. Therefore, the shape of the virtual quadrilateral 400 is a square.

[0054] For example, such as Figure 2A As shown, the second sub-pixel pair 210 is a green sub-pixel pair, the first sub-pixel 110 is a red sub-pixel, and the third sub-pixel 310 is a blue sub-pixel; or the first sub-pixel 110 is a blue sub-pixel, and the third sub-pixel 310 is a red sub-pixel. This embodiment describes the example of the first sub-pixel 110 being a red sub-pixel and the third sub-pixel 310 being a blue sub-pixel. According to the physiological structure of the human eye, the density of cone photoreceptor cells sensitive to different colors on the human retina is lower than that of rod cells. Among them, the density of short-wavelength blue-sensitive cone cells is the lowest, followed by red. Furthermore, the brightness effect of red and blue (stimulation of brightness-sensitive rod cells) is much lower than that of green. Therefore, the resolution of the human eye for the position of blue and red sub-pixels is significantly lower than that for the position of green sub-pixels and the brightness center position of pixels. At a certain pixel resolution, although the human eye can distinguish the brightness center position of pixels and has a normal perception of color, it cannot distinguish the position or boundary of blue or red sub-pixels at the pixel scale. Therefore, the color of the second sub-pixel pair 210 in this embodiment is green.

[0055] For example, in this embodiment, the two second sub-pixels in the second sub-pixel pair 210 are made from an opening in a high-precision metal mask (FMM) plate, which can effectively reduce the process difficulty of FMM.

[0056] For example, in the FMM process, one opening of the FMM is used to deposit a second sub-pixel pair. Before depositing the light-emitting layer of the second sub-pixel pair, electrodes for the two second sub-pixels in the second sub-pixel pair are first fabricated. Along the XY plane, the electrodes of the two second sub-pixels are separated by an insulating material. Therefore, when the light-emitting material is deposited at the location of the second sub-pixel pair, the light-emitting material deposited on the electrodes forms the light-emitting layers of the two second sub-pixels for emitting light, while the light-emitting material deposited on the insulating material cannot emit light. The insulating material between the electrodes of the two second sub-pixels forms the space between the two second sub-pixels. Therefore, the shape of the light-emitting region of the second sub-pixel pair 210 is determined by the shape of the electrodes.

[0057] For example, Figure 2B for Figure 2A The diagram shown illustrates a sub-pixel with a rounded square shape, as follows: Figure 2A and Figure 2BAs shown, the shapes of the first sub-pixel 110, the second sub-pixel pair 210, and the third sub-pixel 310 are all squares or rounded squares, and the diagonals of the squares or rounded squares are parallel to the first direction or the second direction. Here, the shapes of the first sub-pixel 110 and the third sub-pixel 310 are the shapes of the light-emitting areas. The shape of the second sub-pixel pair 210 is the overall shape of the light-emitting areas of the two second sub-pixels and the interval between the two light-emitting areas. That is, the shape of the second sub-pixel pair 210 being a square means that the overall shape of the light-emitting areas of the two second sub-pixels and the interval between the light-emitting areas of the two second sub-pixels is a square. The aforementioned square can be a standard square, or it can include approximate squares other than rounded squares. Approximate squares can include squares with adjacent sides having an included angle close to 90°, or squares with four sides of almost equal length, etc., and this embodiment does not impose any limitations on this.

[0058] For example, such as Figure 2A and Figure 2B As shown, a rounded square refers to a square where at least one of its four corners is rounded; that is, the adjacent sides of the square are connected by shorter arcs to form rounded corners. Figure 2B Taking the first sub-pixel 110 as an example, which is a rounded square (with all four corners rounded), the four sides of the rounded square can be extended and intersected to form a square. The part of the line connecting two opposite points C and D at the intersection of the four sides is located inside the rounded square. The diagonal 112 of the rounded square is parallel to the first direction, i.e. the X direction.

[0059] For example, the openings of the FMM used to fabricate the aforementioned pixel arrangement structure are all designed to be square or rounded square. By minimizing the aperture spacing of the FMM, the fabricated pixel arrangement structure can be made more efficient. Figure 2A The pixel arrangement structure shown can effectively utilize the space of the effective display area, ensure the display effect of the second sub-pixel (green sub-pixel), and reduce the graininess of the second sub-pixel when displayed due to the creation of two second sub-pixels through an opening in the mask.

[0060] For example, such as Figure 2AAs shown, the side lengths (of a square or rounded square) of the first sub-pixel 110, the second sub-pixel pair 210, and the third sub-pixel 310 are approximately the same. That is, in this embodiment, the shapes and sizes of the first sub-pixel 110, the second sub-pixel pair 210, and the third sub-pixel 310 are all the same (all are squares or rounded squares). Therefore, the shapes and sizes of the openings in the FMM used to fabricate the above pixel arrangement structure are all the same. Due to manufacturing processes and other reasons, the side lengths (of a square or rounded square), the second sub-pixel pair 210, and the third sub-pixel 310 may not be exactly the same, but rather approximately the same.

[0061] For example, such as Figure 2A As shown, along the first direction, the distance L2 between two adjacent pairs of second sub-pixels 210 is less than the size of at least one of the first sub-pixel 110 and the third sub-pixel 310 (e.g., the size of the first sub-pixel 110 along the first direction is L3). Therefore, with Figure 1 Compared to the pixel arrangement structure shown, in the pixel arrangement structure provided in this embodiment, the distance between two adjacent second sub-pixel pairs along the first direction is reduced. Therefore, the display device including the pixel arrangement structure provided in this embodiment can effectively reduce the graininess when displaying green.

[0062] For example, such as Figure 2A As shown, along the first direction, the distance L6 between two adjacent first sub-pixels 110 is equal to the distance L7 between two adjacent third sub-pixels 310.

[0063] For example, such as Figure 2A As shown, along the first direction, the distance L2 between two adjacent second sub-pixel pairs 210 is equal to the distance L7 between two adjacent third sub-pixels 310.

[0064] For example, such as Figure 2A As shown, in each pixel group 10, the distance between adjacent first sub-pixels 110 and third sub-pixels 310 arranged along the second direction is equal to the distance between two adjacent first sub-pixels 110 arranged along the first direction. That is, along the second direction, the length of the line connecting the center of an adjacent first sub-pixel 110 and the center of a third sub-pixel 310 is equal to the length of the line connecting the center 111 of two adjacent first sub-pixels 110. At this time, the shape of the virtual quadrilateral 400 is a square.

[0065] For example, the center lines of two adjacent pixel groups 10 arranged along the second direction are parallel to each other, and the multiple center lines of different pixel groups 10 arranged along the first direction are equally spaced.

[0066] For example, such as Figure 2A As shown, the two second sub-pixels 212 and 213 in the second sub-pixel pair 210 have the same shape and size, that is, the second sub-pixel pair 210 is composed of two identical second sub-pixels 212 and 213.

[0067] For example, such as Figure 2A As shown, the two second sub-pixels 212 and 213 in the second sub-pixel pair 210 are both rectangular in shape. For example, as... Figure 2A As shown, the angle between the extension direction of the long side of the rectangle and the direction indicated by the arrow in the Y direction is an acute angle, for example, 45°.

[0068] For example, such as Figure 2A As shown, the length of the long side of the rectangle is the same as the side length of the first sub-pixel 110. Since there is a gap between the two second sub-pixels 212 and 213 in the second sub-pixel pair 210, which have rectangular shapes, the sum of the lengths of the short sides of the two rectangles is slightly smaller than the length of the long side of the rectangle. This embodiment is not limited to this; the sum of the lengths of the short sides of the two rectangles can also be equal to the length of the long side of the rectangle. In this case, the shape of the second sub-pixel pair 210 is approximately square.

[0069] For example, such as Figure 2A As shown, the minimum distance L4 between the two second sub-pixels 212 and 213 in the second sub-pixel pair 210 is less than the minimum distance L5 between the second sub-pixel pair 210 and the third sub-pixel 310 (or the first sub-pixel 110). Figure 2A The minimum distance L5 between the second sub-pixel pair 210 and the third sub-pixel 310 is taken as the minimum distance between the second sub-pixel pair 210 and the third sub-pixel 310 along the second direction, but it is not limited to this. For example, the minimum distance L5 between the second sub-pixel pair 210 and the third sub-pixel 310 can also be the minimum distance between the second sub-pixel pair 210 and the third sub-pixel 310 along the direction parallel to the side of the square.

[0070] In this embodiment, a suitable distance is set between the two second sub-pixels 212 and 213 in the second sub-pixel pair 210. This reduces the difficulty of the manufacturing process while ensuring the smoothness and continuity of the horizontal and vertical lines at the center of the bright spot to the greatest extent possible under high resolution.

[0071] For example, Figure 2C for Figure 2A The diagram shows a minimum repeating unit in the pixel arrangement structure, as follows: Figure 2A and Figure 2C As shown, the two second sub-pixels 212 and 213 in each second sub-pixel pair 210 are the first pixel block 212 and the second pixel block 213, respectively. That is, the multiple second sub-pixel pairs 210 include multiple first pixel blocks 212 and multiple second pixel blocks 213.

[0072] For example, such as Figure 2A and Figure 2C As shown, the pixel arrangement structure includes multiple minimum repeating units 500. Each minimum repeating unit 500 includes a first sub-pixel 110, a first pixel block 212, a second pixel block 213, and a third sub-pixel 310. One of the first pixel block 212 and the second pixel block 213, together with the first sub-pixel 110, constitutes a first virtual pixel 510. The other of the first pixel block 212 and the second pixel block 213, together with the third sub-pixel 310, constitutes a second virtual pixel 520. A first sub-pixel 110 and a third sub-pixel 310 are shared by the first virtual pixel 510 and the second virtual pixel 520, respectively. The virtual pixel described in this embodiment is not a pixel in the strict sense, i.e., a pixel defined by a complete blue sub-pixel, a green sub-pixel, and a red sub-pixel. The minimum repeating unit here refers to a pixel arrangement structure that can be formed by repeating this minimum repeating unit.

[0073] It should be noted that the first pixel block 212 and the second pixel block 213 in each minimum repeating unit 500 can be two second sub-pixels in the same second sub-pixel pair 210, or they can be second sub-pixels in different second sub-pixel pairs 210.

[0074] For example, such as Figure 2A and Figure 2C As shown, in each minimum repeating unit 500, the first sub-pixel 110 and the third sub-pixel 310 are adjacent to each other along the second direction. Along the extension direction of the diagonal of the virtual quadrilateral 400, the first pixel block 212 is the one in the second sub-pixel pair 210 adjacent to both the first sub-pixel 110 and the third sub-pixel 310 that is closer to the first sub-pixel 110. Along the second direction, the second pixel block 213 is the one in the second sub-pixel pair 210 adjacent to the third sub-pixel 310 that is farther from the third sub-pixel 310. Here, the first pixel block 212 and the second sub-pixel block 213 are respectively located in two second sub-pixel pairs 210, and the shapes of the first pixel block 212 and the second pixel block 213 in the minimum repeating unit 500 can form a square.

[0075] For example, Figure 2D For including Figure 2C The diagram shows the pixel arrangement structure of the two smallest repeating units, as follows: Figure 2C and Figure 2D As shown, different Figure 2C The subpixel sharing method shown in this example includes a first pixel 610 and a second pixel block 213. The first pixel 610 includes a first subpixel 110, a first pixel block 212, and a third subpixel 310. The third subpixel 310 in the first minimum repeating unit, the second pixel block 213, and the first subpixel 110 in the second minimum repeating unit constitute the second pixel 620. The first pixel 610 and the second pixel 620 share a third subpixel 310. In this example, the second minimum repeating unit includes a first pixel 610 and a second pixel block 213. The second pixel 620 and the first pixel 610 in the second minimum repeating unit share the first subpixel 110 in the second pixel 620.

[0076] For example, such as Figures 2A-2D As shown, at high resolutions, the second sub-pixel (green sub-pixel) plays a decisive role in the perceived brightness center position of each pixel. Therefore, the second sub-pixels within each pixel should be evenly distributed overall. For example, this even distribution can be achieved by making small relative adjustments to the sub-pixel positions between different rows and columns (the magnitude of which is approximately half or less of the sub-pixel spacing). Furthermore, the first and third sub-pixels shared by two adjacent pixels should also be distributed as evenly as possible within those two pixels, together with the second sub-pixels.

[0077] For example, Figure 2E and Figure 2F They are respectively Figure 2A This is a schematic diagram of another minimal repeating unit in the pixel arrangement structure shown. (See diagram below.) Figure 2A and Figure 2E As shown, in each minimum repeating unit 500, the first sub-pixel 110 and the third sub-pixel 310 are adjacent to each other along a second direction. Along the second direction, the first pixel block 212 is the one in the second sub-pixel pair 210 adjacent to the third sub-pixel 310 that is closer to the third sub-pixel 310. Along the extension direction of the diagonal of the virtual quadrilateral 400, the second pixel block 213 is the one in the second sub-pixel pair 210 adjacent to both the first sub-pixel 110 and the third sub-pixel 310 that is farther away from the first sub-pixel 110. Here, the first pixel block 212 and the second sub-pixel block 213 are located in two second sub-pixel pairs 210, and the shapes of the first pixel block 212 and the second pixel block 213 in the minimum repeating unit 500 can form a square.

[0078] For example, such as Figure 2A and Figure 2FAs shown, each minimum repeating unit 500 includes a first sub-pixel 110, a second sub-pixel pair 210, and a third sub-pixel 310. The first sub-pixel 110 and the third sub-pixel 310 are adjacent to each other along the extension direction of the first diagonal of the virtual quadrilateral 400 (i.e., direction B). The second sub-pixel pair 210 and the first sub-pixel 110 are adjacent to each other along the extension direction of the second diagonal of the virtual quadrilateral (i.e., direction A). The second sub-pixel pair 210 and the third sub-pixel 310 are adjacent to each other along the second direction. The extension directions of the first diagonal and the second diagonal intersect each other. Here, the first pixel block 212 and the second sub-pixel block 213 are located in the same second sub-pixel pair 210, and the shapes of the first pixel block 212 and the second pixel block 213 in the minimum repeating unit 500 can form a square.

[0079] The above Figures 2C to 2F The division of repeating units and virtual pixels, as well as the sharing of sub-pixels in the pixel arrangement structure of this disclosure, are exemplary. Other division methods for repeating units and virtual pixels, or sub-pixel sharing methods, can be selected as needed. For example, a virtual pixel may contain only sub-pixels of two colors: red, green, and blue, while borrowing sub-pixels of other colors from surrounding virtual pixels. Alternatively, pixel borrowing may not be used; that is, the red, green, and blue sub-pixels form the actual pixels used for display.

[0080] For example, Figure 3A This is a schematic diagram of a pixel arrangement structure provided in another embodiment of the present disclosure, and... Figure 2A The pixel arrangement structure shown is different, Figure 3A The angle between the extension direction of the long side of the rectangular second sub-pixels 212 and 213 in the second sub-pixel pair 210 shown and the direction indicated by the arrow in the Y direction is an obtuse angle, for example, 135°.

[0081] For example, Figures 3B-3D for Figure 3A The diagram shows the smallest repeating units with different arrangement patterns in the pixel arrangement structure.

[0082] For example, such as Figure 3B As shown, along the second direction, the first sub-pixel 110 is adjacent to the third sub-pixel 310. The first pixel block 212 is the one located in the second sub-pixel pair 210 adjacent to the third sub-pixel 310 that is furthest from the third sub-pixel 310. Along the extension direction of the diagonal of the virtual quadrilateral, the second pixel block 213 is the one located in the second sub-pixel pair 210 adjacent to both the first sub-pixel 110 and the third sub-pixel 310 that is furthest from the third sub-pixel 310. Here, the first pixel block 212 and the second sub-pixel block 213 are located in two second sub-pixel pairs 210, respectively.

[0083] For example, such as Figure 3C As shown, along the second direction, the first sub-pixel 110 and the third sub-pixel 310 are adjacent. Along the extension direction of the diagonal of the virtual quadrilateral, the first pixel block 212 is located closer to the third sub-pixel 310 in one of the second sub-pixel pairs 210 adjacent to both the first sub-pixel 110 and the third sub-pixel 310. Similarly, along the second direction, the second pixel block 213 is located closer to the third sub-pixel 310 in one of the second sub-pixel pairs 210 adjacent to the third sub-pixel 310. Here, the first pixel block 212 and the second sub-pixel block 213 are located in two separate second sub-pixel pairs 210.

[0084] For example, such as Figure 3D As shown, each minimum repeating unit 500 includes a first sub-pixel 110, a second sub-pixel pair 210, and a third sub-pixel 310. The first sub-pixel 110 and the third sub-pixel 310 are adjacent to each other along the extension direction of the first diagonal of the virtual quadrilateral 400 (i.e., direction B). The second sub-pixel pair 210 and the first sub-pixel 110 are adjacent to each other along the extension direction of the second diagonal of the virtual quadrilateral (i.e., direction A). The second sub-pixel pair 210 and the third sub-pixel 310 are adjacent to each other along the second direction. The extension directions of the first diagonal and the second diagonal intersect each other. Here, the first pixel block 212 and the second sub-pixel block 213 are located in the same second sub-pixel pair 210.

[0085] also, Figures 3B-3D The smallest repeating unit 500 shown has the same sub-pixel shared features as in the above embodiments, which will not be repeated here.

[0086] For example, Figure 3E This is a schematic diagram of the shape of the second sub-pixel pair, as shown below. Figure 3E As shown, the second sub-pixel pair 210 includes two second sub-pixels 212 and 213, which can be rounded rectangles, and the two rounded rectangles can form a rounded square.

[0087] For example, Figure 4A This is a schematic diagram of a pixel arrangement structure provided in another embodiment of the present disclosure, and... Figure 2A Unlike the pixel arrangement structure shown, in this embodiment, the two second sub-pixels 212 and 213 in the second sub-pixel pair 210 are both right-angled triangles, and the hypotenuse of the right-angled triangle is parallel to the first direction.

[0088] For example, Figures 4B-4D for Figure 4A The diagram illustrates the smallest repeating units with different arrangement patterns in the pixel arrangement structure shown. Figures 4A-4DAs shown, the first pixel block 212 and the second pixel block 213 are both right-angled triangles. Along the extension direction of the diagonal of the virtual quadrilateral, one of the first pixel block 212 and the second pixel block 213 is located in a second sub-pixel pair 210 that is adjacent to both the first sub-pixel 110 and the third sub-pixel 310. Along the second direction, the other of the first pixel block 212 and the second pixel block 213 is located in a second sub-pixel pair 210 that is adjacent to the third sub-pixel 310. And along at least one of the first direction and the second direction, the right angle of the first pixel block 212 is oriented in the opposite direction to the right angle of the second pixel block 213.

[0089] For example, such as Figure 4B and Figure 4C As shown, the first pixel block 212 and the second sub-pixel block 213 are located in two second sub-pixel pairs 210, respectively.

[0090] For example, such as Figure 4D As shown, the first pixel block 212 and the second sub-pixel block 213 are located in the same second sub-pixel pair 210.

[0091] For example, the direction pointed to by the arrow in the X direction is considered up, and the direction pointed to by the arrow in the Y direction is considered right. Figures 4B-4D The right angle of the first pixel block 212 is facing right, and the right angle of the second pixel block 213 is facing left.

[0092] also, Figures 4B-4D The smallest repeating unit 500 shown has the same sub-pixel shared features as in the above embodiments, which will not be described again here.

[0093] For example, Figure 4E This is a schematic diagram of the shape of the second sub-pixel pair, as shown below. Figure 4E As shown, the second sub-pixel pair 210 includes two second sub-pixels 212 and 213, which can be rounded right triangles. Two rounded right triangles can form a rounded square.

[0094] For example, the direction pointed to by the arrow in the X direction is considered up, and the direction pointed to by the arrow in the Y direction is considered right. Figure 4E The rounded right angle of the first pixel block 212 is facing to the right, and the rounded right angle of the second pixel block 213 is facing to the left.

[0095] For example, Figure 5A This is a schematic diagram of a pixel arrangement structure provided in another embodiment of the present disclosure, and... Figure 4A Unlike the pixel arrangement structure shown, in this embodiment, the hypotenuses of the two second sub-pixels 212 and 213, which are right-angled triangles in the second sub-pixel pair 210, are parallel to the second direction.

[0096] For example, Figures 5B-5D for Figure 5A The diagram illustrates the smallest repeating units with different arrangement patterns in the pixel arrangement structure shown. Figures 5A-5D As shown, the first pixel block 212 and the second pixel block 213 are both right-angled triangles. Along the extension direction of the diagonal of the virtual quadrilateral, one of the first pixel block 212 and the second pixel block 213 is located in a second sub-pixel pair 210 that is adjacent to both the first sub-pixel 110 and the third sub-pixel 310. Along the second direction, the other of the first pixel block 212 and the second pixel block 213 is located in a second sub-pixel pair 210 that is adjacent to the third sub-pixel 310. And along at least one of the first direction and the second direction, the right angle of the first pixel block 212 is oriented in the opposite direction to the right angle of the second pixel block 213.

[0097] For example, such as Figure 5B and Figure 5C As shown, the first pixel block 212 and the second sub-pixel block 213 are located in two second sub-pixel pairs 210, respectively.

[0098] For example, such as Figure 5D As shown, the first pixel block 212 and the second sub-pixel block 213 are located in the same second sub-pixel pair 210.

[0099] For example, the direction pointed to by the arrow in the X direction is considered up, and the direction pointed to by the arrow in the Y direction is considered right. Figures 5B-5D The right angle of the first pixel block 212 is facing upwards, and the right angle of the second pixel block 213 is facing downwards.

[0100] also, Figures 5B-5D The smallest repeating unit 500 shown has the same sub-pixel arrangement features and sub-pixel sharing features as in the above embodiments, which will not be described again here.

[0101] Figure 6 This is a schematic diagram of a display substrate provided in another embodiment of the present disclosure, as shown below. Figure 6 As shown, the display substrate includes: a substrate 20, and a pixel arrangement structure as described in any of the above embodiments located on the substrate 20. Figure 6 Based on pixel arrangement structure Figure 2A The pixel arrangement structure shown is 1000 as an example.

[0102] For example, the display substrate can be an array substrate of an organic light-emitting diode (OLED) display device. The first sub-pixel 110 includes a first pixel electrode and a first light-emitting layer disposed on the first pixel electrode. The second sub-pixel pair 210, specifically the second sub-pixels 212 and 213, includes a second pixel electrode and a second light-emitting layer disposed on the second pixel electrode. The third sub-pixel 310 includes a third pixel electrode and a third light-emitting layer disposed on the third pixel electrode. The shape of the first pixel electrode is the same as that of the first sub-pixel 110, and it is configured to drive the first light-emitting layer to emit light. The shape of the second pixel electrode is the same as that of the second sub-pixels 212 and 213, and it is configured to drive the second light-emitting layer to emit light. The shape of the third pixel electrode is the same as that of the third sub-pixel 310, and it is configured to drive the third light-emitting layer to emit light.

[0103] For example, the display substrate can be a color filter substrate of a liquid crystal display device, the first sub-pixel 110 includes a first filter, the second sub-pixels 212 and 213 include a second filter, and the third sub-pixel 310 includes a third filter.

[0104] Figure 7 This is a schematic block diagram of a display device 300 provided in another embodiment of the present disclosure. The display device 300 includes a display panel 301, which includes the display substrate 302 described in any of the above embodiments.

[0105] For example, display panel 301 can be a liquid crystal display panel or an organic light-emitting diode (OLED) display panel. When display panel 301 is a liquid crystal display panel, display substrate 302 can be an array substrate or a color filter substrate. When display panel 301 is an organic light-emitting diode display panel, display substrate 302 can be an array substrate.

[0106] For example, the display device can be a liquid crystal display device, an organic light-emitting diode (OLED) display device, or any product or component with display function, such as a television, digital camera, mobile phone, watch, tablet computer, laptop computer, or navigator that includes the display device. This embodiment is not limited to these.

[0107] The following points need to be explained:

[0108] (1) Unless otherwise defined, the same reference numerals in the embodiments and drawings of this disclosure have the same meaning.

[0109] (2) The accompanying drawings of the embodiments of this disclosure only involve the structures involved in the embodiments of this disclosure. Other structures can be referred to the general design.

[0110] (3) For clarity, layers or regions are enlarged in the drawings used to describe embodiments of the present disclosure. It will be understood that when an element such as a layer, film, region or substrate is referred to as being “on” or “below” another element, the element may be “directly” located “on” or “below” the other element, or there may be intermediate elements present.

[0111] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A display substrate, comprising: A plurality of green sub-pixel pairs extending along a first direction and arranged along a second direction, the green sub-pixel pairs comprising a plurality of green sub-pixel pairs, each green sub-pixel pair comprising two green sub-pixels, and the green sub-pixel pairs comprising a first side and a second side in the second direction; as well as A plurality of dual-color sub-pixel rows arranged along the first direction and located on the first and second sides of the green sub-pixel pairs, comprising alternating blue and red sub-pixels distributed in the first direction, such that the projection of the red or blue sub-pixel on the first side in the first direction overlaps with the projection of the blue or red sub-pixel on the second side in the first direction, and the projections of the blue and red sub-pixels on the same side in the second direction overlap, wherein... The distance between two green sub-pixels in a green sub-pixel pair is less than the distance between any one of the two green sub-pixels and the adjacent red or blue sub-pixel of the green sub-pixel pair, and less than the distance between any one of the two green sub-pixels and any other green sub-pixels besides those in the green sub-pixel pair. Each green sub-image in the green sub-pixel pair is a rectangle including a long side and a short side. The long sides of the two green sub-pixels in the green sub-pixel pair are arranged opposite each other, and the short side is parallel to the red sub-pixel and the blue sub-pixel. Along the second direction, the spacing between each red sub-pixel and its two adjacent blue sub-pixels is different, and the spacing between each blue sub-pixel and its two adjacent red sub-pixels is also different.

2. The display substrate according to claim 1, wherein, The green sub-pixel pair is directly adjacent to the dual-color sub-pixel pair, such that there is at least one direction between the red sub-pixel and the green sub-pixel pair, and the shortest distance line in that direction does not pass through other sub-pixels; there is at least one direction between the blue sub-pixel and the green sub-pixel pair, and the shortest distance line in that direction does not pass through other sub-pixels.

3. The display substrate according to claim 1, wherein, The size of the red or blue sub-pixel is greater than the length of the short side of the green sub-pixel in at least one of the first and second directions.

4. The display substrate according to claim 1, comprising a plurality of repeating units, each repeating unit comprising: The two adjacent green sub-pixel pairs in the green sub-pixel pair row, and the two dual-color sub-pixel rows located on the first side and the second side of the two adjacent green sub-pixel pairs, wherein In each of the two adjacent green sub-pixel pairs, the four green sub-pixels each have at least one side that is parallel to each other.

5. The display substrate according to claim 4, wherein, In each of the repeating units, at least one edge of each of the four green sub-pixels in the pair of adjacent green sub-pixels is parallel to or perpendicular to at least one edge of the red sub-pixel or the blue sub-pixel.

6. The display substrate according to claim 4, wherein, The opening area of ​​the blue sub-pixel is larger than the opening area of ​​each green sub-pixel in the green sub-pixel pair.

7. The display substrate according to claim 4, wherein, The maximum size of each repeating unit along the first direction is not greater than the distance between the farthest ends of the two green sub-pixel pairs in the repeating unit.

8. The display substrate according to claim 4, wherein, The maximum dimension of each repeating unit along the second direction is not greater than the distance between the farthest ends of the red and blue sub-pixels arranged along the second direction in the repeating unit.

9. The display substrate according to claim 4, wherein, In each of the repeating units, at least one pair of sides of the red sub-pixel and the blue sub-pixel are parallel to each other.

10. The display substrate according to claim 9, wherein, In each of the repeating units, at least one pair of sides of the red sub-pixel and the blue sub-pixel are parallel to a pair of sides of the green sub-pixel.

11. The display substrate according to claim 4, wherein, Each of the repeating units includes at least a first row and a second row arranged along a first direction and extending along a second direction, respectively. The first row includes a blue sub-pixel and a red sub-pixel, and The second row includes another blue sub-pixel and another red sub-pixel.

12. The display substrate according to claim 11, wherein, The distance between the center lines of the red and blue sub-pixels in the first row along the first direction and along the second direction is L8. The distance along the second direction between the center lines of the other red sub-pixel and the other blue sub-pixel in the second row along the first direction is L9. L8 > L9.

13. The display substrate according to claim 4, wherein, The display substrate includes a display area, and at least a portion of the display area includes a plurality of repeating units.

14. A display device comprising a display substrate according to claim 1.

Images